In the middle of winter, in Alaska, residents of the quiet town of Barrow are preparing to live, as every year, a month without sunlight. In the wake of a series of strange events, Eben (Josh Hartnett) and Stella (Melissa George), both local sheriffs, are learning about the incredible truth. A gang of vampires has invested the city to slay all its inhabitants. Eben, Stella and a small group of survivors such as Marlow (Danny Huston), Billy Kitka (Manu Bennett), Wilson Bulosan (Craig Hall), Doug Hertz (Joel Tobeck), Jake Olemaun (Mark Rendall), Denise (Amber Sainsbury), Lucy Ikos (Elizabeth Hawthorne) and Issac Bulosan (Chic Littlewood) will then try to survive until sunrise.